feat(ext_prop): add build properties

ext-properties/pom.xml

@@ -9,7 +9,7 @@
     <url>https://swingbe.de</url>
     <groupId>de.swingbe</groupId>
     <artifactId>ext_prop</artifactId>
-    <version>0.0.1</version>
+    <version>0.0.2</version>
     <packaging>jar</packaging>
 
     <licenses>
@@ -26,7 +26,9 @@
     <properties>
         <!-- Other properties -->
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-        <version.properties>src/main/resources/version.properties</version.properties>
+        <app.date>${maven.build.timestamp}</app.date>
+        <maven.build.timestamp.format>yyyy-MM-dd:HH:mm:ss</maven.build.timestamp.format>
+        <app.version>${pom.version}</app.version>
     </properties>
 
     <build>
@@ -103,6 +105,7 @@
                 <configuration>
                     <files>
                         <file>src/main/resources/version.properties</file>
+                        <file>src/main/resources/build.properties</file>
                     </files>
                     <outputFile/>
                     <properties/>

ext-properties/src/main/java/de/swingbe/ext_prop/BuildProperties.java

@@ -0,0 +1,42 @@
+package de.swingbe.ext_prop;
+
+import java.io.FileNotFoundException;
+import java.io.IOException;
+import java.util.Properties;
+
+public class BuildProperties {
+    private final Properties properties;
+
+    private final java.net.URL url;
+
+    public BuildProperties() {
+        url = ClassLoader.getSystemResource("build.properties");
+        properties = new Properties();
+    }
+
+    public String getVersion() {
+
+        try {
+            properties.load(url.openStream());
+        } catch (FileNotFoundException e) {
+            e.printStackTrace();
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+
+        return properties.getProperty("build.version");
+    }
+
+    public String getDate() {
+
+        try {
+            properties.load(url.openStream());
+        } catch (FileNotFoundException e) {
+            e.printStackTrace();
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+
+        return properties.getProperty("build.date");
+    }
+}

ext-properties/src/main/java/de/swingbe/ext_prop/Main.java

@@ -1,28 +1,14 @@
 package de.swingbe.ext_prop;
 
-import java.io.FileNotFoundException;
-import java.io.IOException;
-import java.util.Properties;
-import java.util.Set;
-
 public class Main {
     public static void main(String[] args) {
         System.out.println("Hello world!");
-        Properties properties = new Properties();
+        VersionProperties versionProperties = new VersionProperties();
-        java.net.URL url = ClassLoader.getSystemResource("version.properties");
+        System.out.println("version: " + versionProperties.getVersion());
-
+        BuildProperties buildProperties = new BuildProperties();
-        try {
+        System.out.println("build.version: " + buildProperties.getVersion());
-            properties.load(url.openStream());
+        System.out.println("build.date: " + buildProperties.getDate());
-        } catch (FileNotFoundException fie) {
+        System.out.println("Done!");
-            fie.printStackTrace();
-        } catch (IOException e) {
-            e.printStackTrace();
-        }
-        System.out.println("version: " + properties.getProperty("version"));
-        Set<String> keys = properties.stringPropertyNames();
-        for (String key : keys) {
-            System.out.println(key + " - " + properties.getProperty(key));
-        }
     }
 
 

ext-properties/src/main/java/de/swingbe/ext_prop/VersionProperties.java

@@ -0,0 +1,29 @@
+package de.swingbe.ext_prop;
+
+import java.io.FileNotFoundException;
+import java.io.IOException;
+import java.util.Properties;
+
+public class VersionProperties {
+    private final Properties properties;
+
+    private final java.net.URL url;
+
+    public VersionProperties() {
+        url = ClassLoader.getSystemResource("version.properties");
+        properties = new Properties();
+    }
+
+    public String getVersion() {
+
+        try {
+            properties.load(url.openStream());
+        } catch (FileNotFoundException e) {
+            e.printStackTrace();
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+
+        return properties.getProperty("version");
+    }
+}

ext-properties/src/main/resources/build.properties

@@ -0,0 +1,2 @@
+build.version=${app.version} 
+build.date=${app.date}